LONDON — Mo Farah, the Somalian-born runner from Great Britain, became the first man since 1980 to win the Olympic distance-running double, taking the 5,000-meter final on Saturday night.

Farah took the lead in a slow-paced race with 2 1/2 laps left and held off the field to add the 5,000 gold medal to the 10,000 crown he already owned. Farah crossed in 13 minutes, 41.66 seconds.

He is the first 5,000/10,000 winner since Ethiopia’s Miruts Yifter in 1980.

Ethiopia’s Dejen Gebremeskel won silver in 13:41.98 and Kenya’s Thomas Longosiwa took the bronze in 13:42.36.

American Bernard Lagat, 37, in his fourth Olympics, placed fourth at 13:42.99. Oregon’s Galen Rupp, runnerup to his training partner Farah in the 10,000, was seventh at 13:45.04, and Lopez Lomong of the U.S. was 10th at 13:48.19.

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